Angular like reactive forms in React.

Small jQuery plugins for handling conditional form fields via data attributes. Unmaintained.

Django radio grid field

Customer and Address Form Fields Manager for Magento2

React List Form WebPart

A Flutter form field package designed to relieve developers of much of the form-related coding. It provides field masking, validation, smart trimming, and more.

Forms to be used with the CarbonJS Framework or standalone

Django form and model fields that performs URL normalization and supports for multiple URLs in one field (separated by newlines)

form element UI with slider checkbox and radio, multiple select and data and other

Use the PdfDocumentFacade and PdfAcroFormFacade classes to change the interactive form field's parameters in a PDF document.